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保护利用寄生线虫防治农作物害虫,已经引起了国内外的重视。1976年我们在教学实习中发现大量稻飞虱被线虫寄生,寄生率高达93%。五年来我们对这种索线虫的形态征、生活习性、
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应用Dienes′染色剂的0.2%溶液于徒手切片或冰冻显微切片显出染病植株韧皮部中的类菌原体(MLO)。这种染色剂对MLO病害,包括一些螺旋体病原表现出特异性。而在其它病原侵染的植
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红点唇瓢虫Chilocorus kuwanae Silvestri在上海普遍存在,其成虫和幼虫能捕食桑白盾蚧、夹竹桃圆蚧(常春籐圆蚧)、椰圆蚧、紫牡蛎蚧、拟褐圆蚧、日本长白蚧等多种盾蚧。还能
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